Crawford H. Greenewalt, Du Pont Building, Wilmington, Delaware, to Eliot Porter. December 14, 1961.

Laura Gilpin to Charles Duell, Duell, Sloan & Pearce. January 28, 1952.

Otto Kallir, Galerie St. Etienne, Inc., New York, New York, to John Collier. November 11, 1940.

Minor White, Assistant to the Curator, George Eastman House, Rochester, New York, to Eliot Porter. October 19, 1955.

Henwar Rodakiewicz, New York, New York, to Eliot Porter. December 15, 1969.

G. W. E. [George William Eggers], New York, New York, to Laura Gilpin. April 2, 1949.

Laura Gilpin, Santa Fe, New Mexico, to Don Kriloff, Scott, Foresman, Inc. May 11, 1959.

Flight

G. F. Crabtree, Director, Museum of Albuquerque, Albuquerque, New Mexico, to Laura Gilpin. October 19, 1967.

Thayer Jaccaci, J. Walter Thompson Company, New York, New York, to Laura Gilpin. November 10, 1950.

Imogen Cunningham, Photographer, San Francisco, California, to Eliot Porter. May 28, 1962.

Paul Strand, New York, New York, to Laura Gilpin. January 29, 1924.

Clarence H. White, Clarence H. White School of Photography, New York, New York, to Laura Gilpin. June 10, 1924.

R. L. Shalkop, Curator, The Taylor Museum, Colorado Springs, Colorado, to Laura Gilpin. May 13, 1969.

Catriona Glazebrook, Texas Audubon Society, Austin, Texas, to Stuart Gentling. June 18, 1999.

Edward K. Clark, McGinnis, Lochridge, & Kilgore, Austin, Texas, to David Holman. February 13, 1985.

David H. McAlpin to Eliot Porter. December 3, 1940.

Robert F. Seibel, Carlisle, Massachusetts, to Sina Brush-Morales. February 16, 1978.

Laura Gilpin, Santa Fe, New Mexico, to Natalie Davis. November 14, 1949.

Eliot Porter to W. E. Schmidt. May 18, 1971.